| Date | IP Address |
| 2021-09-24 | 104.18.6.132 (ClassC) |
| 2023-12-24 | 172.64.155.46 (ClassC) |
| 2024-08-14 | 104.18.32.210 (ClassC) |
| 2025-01-08 | 104.18.16.97 (ClassC) |
| 2025-03-30 | 104.18.17.97 (ClassC) |
| Date | Domain | IP |
| portal.efax.es | 2024-05-18 | 104.18.16.97 |
| www.efax.es | 2024-08-20 | 104.18.32.210 |